﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp3

{
    class Program
    {
        static void Main(string[] args)
        {
            Song();
        }

        public static int i = 0;

        public static void Song()
        {
            Console.WriteLine("yidifei");
            Console.WriteLine("mask");
            Console.WriteLine("disposable");
            Console.WriteLine("12345");

            i++;
            if (i >= 4)
            {
                return;
            }
            Song();
        }
    }
}